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Pure hydroxyapatite (HA) is brittle and it cannot be directly used for the load-bearing biomedical applications. The purpose of this investigation was to develop a new iron-containing HA/titanium composite via pressureless sintering at a relatively low temperature with particular emphasis on identifying the underlying toughening mechanisms. The addition of(More)
A simple and highly sensitive procedure for spectrophotometric determination of zirconium has been developed. At pH 4.6, zirconium reacts with 2-(6-bromo-2-benzothiazolylazo)-5-diethylaminophenol in the presence of sodium lauryl sulphate to form a red-violet complex, which has an absorption maximum at 520 nm. The molar absorptivity at 520 nm is 4.4 x 10(5)(More)
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